Question

Consider the reaction:

A(*g*)⇌B(*g*)+C(*g*)

Find the equilibrium concentrations of A, B, and C for each of the
different values of *K*c. Assume that the initial
concentration of A in each case is 1.0 M and that the reaction
mixture initially contains no products. Make any appropriate
simplifying assumptions.

*K*c= 1.0×10^{−5}

Answer #1

A(*g*) ⇌
B(*g*)+C(*g*)

initial conc 1 M 0 0

change conc -x +x +x

at euilibriumm 1-x +x +x

Kc = [B][C]/[A]

1*10^{-5} =
x*x/1-x

x<<<1

1*10^{-}^{5} = x^{2}

x = 3.16*10^{-2}

[A] = 1-0.0316 = 0.9684M

[B] = 0.0316M

[C] = 0.0316M

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